Abstract
In-beamγ-ray and conversion electron measurements with (α, xn) reactions have established the145Sm highspin states up toI π=25/2+ at 3.5 MeV excitation. A shell model analysis using empirical two- and one-body energies from neighbouring nuclei classifies the low-lying odd-parity levels as 3-quasiparticle states formed by the144Sm two-proton-hole excitations and thef 7/2 valence neutron. The higher-lying positive-parity states involve particle-hole core excitations with one proton inh 11/2.
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Alexander v. Humboldt fellow at the IKP Jülich
One of us (M.P.) acknowledges receipt of an Alexander v. Humboldt fellowship which enabled him to spend a highly productive and inspiring period at the Institut für Kernphysik of KFA Jülich. The present work was partially supported by the Academy of Finland, by C.A.I.C.Y.T. (Spain), and by the program Acciones Integradas between the Federal Republic of Germany and Spain.